28:12 You are to put the two stones on the shoulders of the ephod, stones of memorial for the sons of Israel, and Aaron will bear their names before the Lord on his two shoulders for a memorial.
Exodus 28:15
28:15 “You are to make a breastpiece for use in making decisions, the work of an artistic designer; you are to make it in the same fashion as the ephod; you are to make it of gold, blue, purple, scarlet, and fine twisted linen.